<script setup>
import { User, Lock } from "@element-plus/icons-vue";
import { ref } from "vue";
// 使用element-plus 的提示框
import { ElMessage } from "element-plus";
// 获取路由对象
import { useRouter } from "vue-router";
const router = useRouter();
//导入token状态
import { useTokenStore } from "@/stores/token.js";
//调用useTokenStore得到状态
const tokenStore = useTokenStore();

//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false);

// 定义数据模型
const registerData = ref({
  username: "",
  password: "",
  confirmPassword: "",
});

// 校验密码是否一致
const checkConfirmPassword = (rule, value, callback) => {
  if (value === "") {
    callback(new Error("请再次输入密码"));
  } else if (value !== registerData.value.password) {
    callback(new Error("两次密码不一致"));
  } else {
    callback();
  }
};

// 定义表单校验规则,trigger: 'blur'表示离焦后触发校验
const registerRules = {
  username: [
    { required: true, message: "请输入用户名", trigger: "blur" },
    { min: 5, max: 16, message: "长度在 5 到 16 个字符", trigger: "blur" },
  ],
  password: [
    { required: true, message: "请输入密码", trigger: "blur" },
    { min: 5, max: 16, message: "长度在 5 到 16 个字符", trigger: "blur" },
  ],
  confirmPassword: [{ validator: checkConfirmPassword, trigger: "blur" }],
};

// 调用注册接口
import { userRegisterService, userLoginService } from "@/api/user";
const register = async () => {
  const result = await userRegisterService(registerData.value);
  // 使用axios拦截器进行处理，不再 需要手动判断
  // if(result.code === 0){
  //     alert(result.message? result.message : '注册成功')
  // }else {
  //     alert(result.message? result.message : '注册失败')
  // }
  ElMessage.success(result.message ? result.message : "注册成功");
};

// 调用登录接口
const login = async () => {
  const result = await userLoginService(registerData.value);
  // if(result.code === 0){
  //     alert(result.message? result.message : '登录成功')
  // }else {
  //     alert(result.message? result.message : '登录失败')
  // }
  tokenStore.setToken(result.data);
  ElMessage.success(result.message ? result.message : "登录成功");
  // 登录成功后，跳转首页
  router.push("/");
};

// 清除输入的数据
const clearRegisterData = () => {
  registerData.value = {
    username: "",
    password: "",
    confirmPassword: "",
  };
};
</script>

<template>
  <el-row class="login-page">
    <el-row class="login-container">
      <el-col :span="12" class="bg"></el-col>
      <el-col :span="6" :offset="3" class="form">
        <!-- 注册表单 -->
        <el-form
          ref="form"
          size="large"
          autocomplete="off"
          v-if="isRegister"
          :model="registerData"
          :rules="registerRules"
        >
          <el-form-item>
            <h1>注册</h1>
          </el-form-item>
          <el-form-item prop="username">
            <el-input
              :prefix-icon="User"
              placeholder="请输入用户名"
              v-model="registerData.username"
            ></el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              :prefix-icon="Lock"
              type="password"
              placeholder="请输入密码"
              v-model="registerData.password"
            ></el-input>
          </el-form-item>
          <el-form-item prop="confirmPassword">
            <el-input
              :prefix-icon="Lock"
              type="password"
              placeholder="请输入再次密码"
              v-model="registerData.confirmPassword"
            ></el-input>
          </el-form-item>
          <!-- 注册按钮 -->
          <el-form-item>
            <el-button
              class="button"
              type="primary"
              auto-insert-space
              @click="register"
            >
              注册
            </el-button>
          </el-form-item>
          <el-form-item class="flex">
            <el-link
              type="info"
              :underline="false"
              @click="
                isRegister = false;
                clearRegisterData();
              "
            >
              ← 返回
            </el-link>
          </el-form-item>
        </el-form>
        <!-- 登录表单 -->
        <el-form
          ref="form"
          size="large"
          autocomplete="off"
          v-else
          :model="registerData"
          :rules="registerRules"
        >
          <el-form-item>
            <h1>登录</h1>
          </el-form-item>
          <el-form-item prop="username">
            <el-input
              :prefix-icon="User"
              placeholder="请输入用户名"
              v-model="registerData.username"
            ></el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              name="password"
              :prefix-icon="Lock"
              type="password"
              placeholder="请输入密码"
              v-model="registerData.password"
            ></el-input>
          </el-form-item>
          <el-form-item class="flex">
            <div class="flex">
              <el-checkbox>记住我</el-checkbox>
              <el-link type="primary" :underline="false">忘记密码？</el-link>
            </div>
          </el-form-item>
          <!-- 登录按钮 -->
          <el-form-item>
            <el-button
              class="button"
              type="primary"
              auto-insert-space
              @click="login"
              >登录</el-button
            >
          </el-form-item>
          <el-form-item class="flex">
            <el-link
              type="info"
              :underline="false"
              @click="
                isRegister = true;
                clearRegisterData();
              "
            >
              注册 →
            </el-link>
          </el-form-item>
        </el-form>
      </el-col>
    </el-row>
  </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
  padding: 100px;
  height: 100vh;
  background-color: #fff;

  .login-container {
    width: 100%;
    background-color: aqua;
    border-radius: 20px 20px 20px 20px;
  }

  .bg {
    background: url("@/assets/login_bg.jpeg") no-repeat center / cover;
    border-radius: 20px 20px 20px 20px;
  }

  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;

    .title {
      margin: 0 auto;
    }

    .button {
      width: 100%;
    }

    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>